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Finding the Fourth Proportional to 74,071.80, 110,957.04 and 51,608.88

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Solution

The fourth proportional to 74,071.80, 110,957.04 and 51,608.88 is: 77,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,071.80 : 110,957.04 = 51,608.88 : x
  2. Step 2: Convert to fraction form
    74,071.80/110,957.04 = 51,608.88/x
  3. Step 3: Cross multiply
    74,071.80x = 110,957.04 × 51,608.88
  4. Step 4: Simplify right side
    74,071.80x = 5,726,368,562.52
  5. Step 5: Solve for x
    x = 5,726,368,562.52/74,071.80
  6. Step 6: Final answer
    x = 77,308.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.